/Engine/Source/Runtime/Engine/Classes/Components/SplineComponent.h
Sets the spline to an array of points
void SetSplinePoints ( const [TArray](API\Runtime\Core\Containers\TArray)< FVector > & Points, [ESplineCoordinateSpace::Type](API\Runtime\Engine\Components\ESplineCoordinateSpace__Type) CoordinateSpace, bool bUpdateSpline )